This is definitely a great choice to stay in BBK. The host is amazing, very polite and friendly, speaks English and welcomes you with food! The room is very new, in the recently constructed building, so not so many neighbors yet. Everything is clean and stylish. Location is indeed very convenient and there are a lot of things nearby, or reachable via metro.
However, I was staying in July-August 2022 and there was a construction of buildings nearby, that started as early as 8 am, so If you are at home at that time, noise can be very annoying and all the workers are constantly around too. Plus, as it is a new building, some neighbors are placing furniture and so on, be prepared to wake up without the alarm.
The location of the condo is off any major street, and on one hand it means quite, but on the other it means that you will have to either pass barking dogs or some narrow streets with constantly moving motorbikes and rats, most of the residents are coming by some means of transportation, like taxi, motorbike or a car.
As for the gym and the swimming pool, they are also very morden and beautiful, but tiny. If you, like me, prefer to have a nice long workout kind of swim, you'll have to hunt for a time when there is nobody in the swimming pool, because otherwise it is too small for even two people to be in comfortably. I recommend 8am. There is no sign up for it, so nobody guarantees you a free spot. But as there are not that many residents at the moment it is not too bad. Plus the swimming pool is on the second floor, so you'll have to go there through the lobby, I would say, it was a tiny bit uncomfortable, but that is just a minor detail.
Overall, I greatly rate my experience, the stay was nice, but it comes with some little details you need to get used to.